基于室外风环境与热舒适度的城市设计改进策略——以北京西单商业街为例  

Analysis of Urban Design Strategies Based on the Outdoor Wind Environment and Thermal Comfort——A Case Study of Beijing Xidan Commercial District

作　　者：史源[1] 任超[1] 吴恩融[1] 

机构地区：[1]香港中文大学建筑学院

出　　处：《城市规划学刊》2012年第5期92-98,共7页Urban Planning Forum

摘　　要：城市室外风热环境对于城市生活品质起着不容忽视的作用,对于城市室外公共空间,如商业街,行人层高度风环境与热舒适度的优劣对其商业价值有着直接的影响。选取北京西单商业街为案例进行研究,基于北京夏季炎热高温冬季寒冷风强的地域气候特征,结合其数次城市设计环境改造,通过数值模拟手段,对北京西单商业街冬夏两季室外开放空间行人层风环境与热舒适度进行综合评价,针对现存导致室外风热环境恶化的城市设计问题提出改进措施,并总结提升城市户外风热环境品质的普适性城市设计策略结果可从户外舒适度的角度提供同类型商业街区的城市设计参考,从而创造宜居的城市户外环境与空间。Urban outdoor wind and thermal environment plays an important role in defining urban quality of life. In terms of commercial streets, wind environ- ment and thermal comfort at the pedestrian level have direct impact on the commercial value of the street. Beijing Xidan Commercial District is chosen for the case study. By taking into consideration of local climate characteristics and corre- sponding urban design issues, the paper provides a comprehensive evaluation of the urban outdoor wind and thermal comfort based on a numerical modeling simu- lation. Existing wind and thermal design problems are identified and correspond- ing urban design strategies are developed to solve the problems. The study result is expected to be shared by urban designers and the lessons learnt may help in- form similar street design projects in high-density cities in China to achieve urban livability objectives.

关 键 词：风热环境 数值模拟 城市设计 商业街区 

分 类 号：TU984.13[建筑科学—城市规划与设计]